... sternpost, chain wheel, slag pot, etc.Material:Carbon steel,Low alloy steel: ZG20SiMn, ZG35SiMn, ZG35SiMnMo, ZG35CrMo, ZG42CrMo, ZG40Cr ... Penetrant Testing· Individual Weight: 500KG – 60MT Production quality and testing equipment:Magnetic powder inspectionUT nondestructive testDye inspectionLeeb hardness ... pot with the material of carbon steel,low alloy steel and so on.More than 20 years experience, ...